Ronald W. Mathis

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Geographic routing of emergency service call center emergency calls
- Patent number 7,177,397
- Issue date Feb 13, 2007
- Intrado Inc.
- Patti L. McCalmont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Geographic routing of emergency service call center emergency calls
- Patent number 6,771,742
- Issue date Aug 3, 2004
- Intrado Inc.
- Patti L. McCalmont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Geographic routing of emergency service call center emergency calls
- Publication number 20040184584
- Publication date Sep 23, 2004
- Intrado Inc.
- Patti L. McCalmont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Routing of emergency calls based on geographic location of originat...
- Publication number 20030109245
- Publication date Jun 12, 2003
- Patti L. McCalmont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Geographic routing of emergency service call center emergency calls
- Publication number 20030086539
- Publication date May 8, 2003
- Patti L. McCalmont
- H04 - ELECTRIC COMMUNICATION TECHNIQUE